TOHATSU TLDI 40 Service Manual page 153

Symptom
3-2.
Fuel system
3-3.
3.
Air system
Engine
starts but
idling falters
or is
unstable
3-4.
Electrical
system
4.
4-1.
Engine idles
Electrical
too high
system
5-1.
5.
5-2.
Engine
unstable
5-3.
above
3,000 rpm
5-4.
6.
6-1.
No
Engine
acceleration
compression
at full throttle
Item
Low fuel pressure in air rail.
[normal: 0.6 to 0.64 MPa]
87 to 93 psi
High fuel pressure in air rail.
[normal: 0.6 to 0.64 MPa]
Low air pressure in air rail.
[normal: 0.53 to 0.57 MPa]
High air pressure in air rail.
Spark plugs
Spark plug caps
Self-diagnosing function
indicates faulty components.
Self-diagnosing function
indicates faulty TPS idling
position.
Air injector
Variable idling switch
Self-diagnosing function
indicates faulty
TPS idling position.
Spark plugs
Engine rpm control
Fuel pressure or air
pressure too low.
TPS (*1) not functioning.
Advancer arm is poor
movement.
Faulty compression.
9-8
Self- Warning
diagnosable
Beeps indicator
points
A (oil)
Flashing
Flashing
Flashing
Flashing
Warning Warning
indicator B indicator
(water temp) C (battery)
Flashing Flashing
Flashing Flashing
Flashing Flashing
Flashing Flashing